1978] 
Vollrath — Relationship Between Two Spiders 
349 
Figure 1. The mygalomorph spider Diplura sp. in its silken retreat, feeding on a 
grasshopper. Perched on its eyes and on its chelicerae is the symphytognathid asso- 
ciate Curimagua bavano. 
When I brushed Curimagua off the dipluran cephalothorax, they 
crawled about in the web and, as soon as contact was made with an 
extremity of the host, they started to climb it to regain their former 
position. During an experiment, a Curimagua female was taken 
from the back of a Diplura and confined to a Petri dish (diameter 5 
cm) with another mygalomorph spider of approximately the same 
size as the diplurid. The Curimagua did riot attempt to mount this 
spider. 
Food of Curimagua 
Scanning photographs of a female Curimagua taken in frontal 
view of the “head” region (frontal ridge of cephalothorax: clypeus) 
show the distinct feature of this group, that is, the pedipalpal coxae 
lack the palpae (Figure 2). The coxae and the clypeus form a 
circular depression which is densely covered with fine hairs as well 
as trichobothria. The chelicerae — which in spiders are normally 
